Dotenv Linter is a lightning-fast linter for .env files. It helps ensure your environment files are consistent, typo-free, and follow best practices.

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Files

Dotenv Linter will run on files with the following patterns:
  • **/.env
  • **/.env.*
We will not run against files that do not start with .env (e.g., test.env). However .env.dev or .env.local is fine.
Dotenv Linter does not require configuration to run and automatically anlysises .env files. If no configuration file is found, it will use default settings.

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Features

Dotenv Linter can detect:
  • Key duplication
  • Missing values
  • Incorrect formatting
  • Invalid characters
  • And many more issues